Simulation and modelling
Swerea MEFOS works extensively with computer models of processes and process chains. Modelling and simulation are used to recreate reality. The purpose is to identify and resolve problems in the production process.
Computer models with FEM (Finite Element Method) are used to simulate metalworking processes, such as hot and cold rolling, forging, coiling, cooling and straightening. We use three commercial software applications: LS Dyna, MSC Marc and Sysweld. Factors such as temperature development and the microstructure of the material can be taken into consideration during processing.
We also have several programs developed in-house. One example is STEELTEMP, which is broadly used in industry to calculate temperature distribution in blanks during heating and cooling. There are also several programs for more specific applications, such as setting a rolling mill for flatness control.
CFD modelling is a technique used to study the behaviour of the liquid blanks and gases together with heat flows and chemical reactions, combustion, etc. It is used to describe metallurgical processes such as pelletizing (of ore), blast furnace, converter, electric arc furnace, ladle treatment and casting. CFD is also used to model flue gas flows and temperatures in heating furnaces. Here, we primarily use two commercial software applications: ANSYS Fluent and Phoenics.